Thank you Philip, great explanation and that makes perfect sense. We are all familiar with the name game with different terms used for the same type weapon, but typically think of it more commonly with ethnographic weapons, than in European context. I forget about the dialectic differences.
I recall once, many years ago (MANY) trying to find a Swiss dictionary

bonk!
Thats really weird about Beethoven, obviously the issue of deafness is well known, but had not heard of the lead poisoning matter. The presence of lead in pipes of course is well known as noted with Latin term 'plumbum' for lead (Pb), but had not heard of it used in cheap wine (do ya have that in a 55 gallon drum?).